Since not all diamonds to be found in Canada have been found, a number is not available.
In rare cases, diamonds have been found in creeks. The rain water will push them to the surface. Usually the diamonds are mined from deep in the earth.
Diamonds have been found in Arkansas, at Crater of Diamonds State Park. People are invited to 'mine' diamonds here -- and keep what is found -- otherwise, there is no commercial mining involved.
Louisiana is not known for its raw diamonds, but predictably, you can find diamonds in jewelery stores in that state.
Diamonds have been part of human history for about 6,000 years. The date you want has been lost to history.
Idaho is known as the 'GEM' state because nearly every known gem stone has been found in the state of Idaho. In addition, there are only two places in the world where 'STAR GARNETS' are found, Idaho is one and the other is in the Himalayan Mountains of India. Idaho is the only place where 'SIX Sided Garnets' have been found.
Raw diamonds are found every day in active diamond mines, and sometimes -- perhaps daily, somewhere -- cut and polished diamonds are found objects in the streets, having been lost.
Diamonds are typically found in kimberlite pipes, which are vertical volcanic structures that bring diamonds to the Earth's surface. Diamonds can also be found in alluvial deposits, where they have been transported by rivers and streams from their original source.
Diamonds have been found in Africa, Australia, Canada, Brazil, India and even in USA.
Diamonds are found in Australia, Russia, several countries in Africa, Brazil and Canada. Diamonds have also been found in USA, in Arkansas.
SILVER
The state of Idaho was found in 1890.